Refrigerator



REFRIGERATOR Filed March 19. 1950 5 Sheets-Sheet 1' n0 a v w w H5 4 I Z 2 f v m,

M U z 7. mm c )2 m/ gwumtoz Charles A. Moore C. A. MOORE REFRIGERATOR Nov. 8, 1932.

Filed March 19. 1950 5 Sheets-Sheet 2 gran-M4 01? Charles A. Moore C. A. MOORE REFRIGERATOR Nov. 8, 1932.

3- Sheets-Sheet 5 Filed March 19 1950 a IIIIIIIIA IIIIIIIIIIIIIIIIIIIIIMIIIIIIIII/I14"II/4VIIIIIIIIII/IMII/Mlfl III/III gwuemtoz Charles A Moere f atented Nov. 8, 1931.. a n

CHARLES A. MOORE, on EDINA, mnnnsora REFRIGERATOR Application filed March. s, 193d Serial to. 437,011.

invention relates to improvements in refrigerators, an, object thereof being to provide a simple, durable, compact, unitary, efficient. and relatively inexpensive refrigerator for domestic and commercial use, wherein the is. refrlgerated and circulated, in a.

convective and diffused manner wherein novelprovision is made for ventilation. Another object of the invention Is to proli) v e a Structure: 'Of the present character wherein a' harmless refrigerating medium is caused to be circulated by gravity through a refrigerating element within the refrigerar torproper.

I i view, which will appear in the followlng description, the invention: resides in the novel combination and arrangement 1 of parts and in the details of construction hereinafter de- 29 scribed and claimed. I V

Fig. 1 is'. a. Vertical sect onal ylew of arefrigerator embodying my 1nVent1on,the same i being; taken on the line'1-1 of Flgi 2; Fig. 2 is also. a. vertical. sectional View, the same being aken on 611611116 2- l i 1 and: Fi 3.is:a horizontal 01 1 3 t e 0f 1- x V l. 7 Reference beinghad tothedrawlngs, 1t will be seen that, my improved refrigerator 1n- .329 cludesa. cabinet A forming a provisioncham ber B, the c abinet comprlslng a, bottom 10,, fifontylLbaGk 12, ends 13and top 14, said partsbeing insulatedas at. 15andlined, within, as by a lining 16. The front 11' ofthe I cabinetisprovided withdoors 17wh1ch'1endaccess to the interiorof the chamber 13..

Withinthe upperportion of said chamber centrally thereof; are two spaced refrigeraterating liquid such as-br-ine'. In thistankisa; coil 20-and*sunmounting-tlietank is an applianceE, which may be of any, convenan ofial d s gmfor supplying thecoilQO with H spaces G, one in each of" said With' the foregoing and other objects in ingelements-G ofsuitable design such as that t minal 21". at the bottom of the central a circulating refrigerating medium, such as ammonia. V i The turns of thecoil 20 are banked to proride a clear vertical", central space F in the tank D (Fig.2) and clear, Vertical, side spaces G between the coil reaches and thefront and rear sides of said tank; Extending along the bottom of the tank, and com-V municating from end to end thereof with ,the interior of the tank isa feed terminal 21 and two return terminals 22,the feed terminal being disposed in the central space F in the tank D and the return terminals in the outer two spaces. The coiled conduits 18 :ofthe refrigerating elements 0 are connected with the feedand return terminals 21 and22, thefextre mity 18 of each conduit, which feeds into the upper portion of the coiled portion thereof, com-- municating With the feed terminal 21 and the other extremity 18 of each conduit 18 com 12nunicating with one ofrsaid return, terminals The brine or other fluid in the tank D, being cooled by the refrigerating medium in the coil 20, circulates by grayity through the conduits18'of elements C, thus causing the chamber B and its contentsv to be refrigerated. This refrigerating fluid being of such character as brine and consequently havingno possible delet'erious-efiect'upon the edible contents of the chamber renders therefrigerator entirely safe in'use.

Owingto the formof'the coil 20 and its disposition-within the tank 1]) and to the superimposedrelation of. said tank, with re spect to the refrigerating; elements C, an ef f'e'ctive gravitating circulation of brine is set up within the tank D'and alike circulation set up in said elements'C, from saidtankD, through conduits I8; and backto the tank. In thetank, the'ibrine in thecentra'l space .F,"where it. is" relatively cold, flowsdowh- I ward to bottom ofthe tank, thenceedivide's and-'flowsin opposite directions to the spaces Gr, where it ascendsalong the relatively-warm front and rear walls of saidltank. Thence,

thebr-inefiows inwardly' to-the central space.

F, thus completing thecycle' With thef'eed 100 space F and at the point of lowest temperature in the tank; the brine at such locality readily gravitates into said terminal 21 and from it through the extremities 18 of conduits 18 to and through the coiled portions thereof. Withthe return terminals 22 at the bottom of spaces'Gr, where the flow of brine tion' within a bunker structure H spaced from the ends of the chamber B and extending from front to back thereof". This bunker structure comprises hollow baffles 23, 24: preferably formed of sheet metal, each bar"- fie consisting of a side member125 and a bottom member'26, the same commui icating with each other. The bottom members 26 of the bafies 23,24 are spaced apart attheir adjacent inner en tremities to form a central air egress port 27, while the side members 25 of said baflies are spaced at their upper extremities from the ceiling of the chamber B to provide passageways 28 for the passage of air from the upper portionbf the chamber B' into the upper portion of the bunker structure. The interiorof the hollow baffle 23 communicates at theupper portion of its side member 25 with theouter air through a fresh air ingress pipe 2 9 in the backof' the cabinet A, the inner edge of the "bottom 7 member 26 of said'bafile 23 being open along.

its extent to provide an outlet 30 for the egress of air from saidbaffle into the chamber B at the port 27. 'The' interior'of the hollow baffle 2 1 communicates along the upper edgeof its side member, 25, through an ingress opening 31 with the chamber B at the passageway 28 between said side meme ber 25, and the ceiling of the chamber. The bottom member 26 of thishollow baffle 2 1 communicates at the inner portion thereof with the outer air through an egress pipe 32 in the back of the cabinet. 1 y

The air within the chamber B circulates chiefly as follows: That air within. the bunker structure-"H and about the. refrigerating elements C, being cooled in greatest degree descends through port 27 falling to thefloor of the chamber'B. At this point the stream of air is divided, whence it flows in opposite directions toward the relatively warm ends of the chamber, and thence ascends along said 7 ends to the ceiling. Thence, the air flows inwardly through the passageways 28 over the refrigerating elementsC, where the cycle is begun anew. In its travel theair passes through shelves 33 suitably arranged and of suitably meshed material, the same moving about the various commodities placed on said shelves. Thus, a convective and diffused circulation of refrigerated air is established within the chamber B, whereby the refrlgerator is rendered efiicient in maximum de-' gree.

A secondary ventilating circulation of air, by gravity, is set up within the device as will now be described. The sheet metal shells forming the 'baiiles 23, 24 are, of course, affected by the. refrigerating elements O,-the air within the interior of each being reduced in temperature as compared with the temperature of the air outside of the cabinet. Air gravitating through egress pipe32 from the interior of bafie 24 establishes a scavenging flow from the upper portion of the chamber B, the air' from that locality entering the baffle 2 1 through opening 31 at the passca'geway 18 formedbetween the side member 25. of said bafile and the ceiling of the chamber." Air gravitating intobaffle 23 through ingress pipe 29 flows from the outlet opening 30 in:

said bafiie, joining the circulating flow of air within the chamber B at the port 27. Thus,

catch any drip from the refrigerating ele. ments C and also condensation that'may formv on the baflies, said bottom 'membersi being sloped, as shown, and :perforated as. at 3d (Fig. 3), to draininto branch drain pipes 35,

which meet at the lower portion of the chamber Band form a single drain 36. i

Changesin the specific form'of my invention, as herein disclosed, may be made within the scope of what is claimed Without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In a refrigerator, a 'cabinetproviding a' chamber for provisionsand havinga door lending access to the chamber, a tank containing a refrigerating liquid superimposing the cabinet,'a coil inthe tank for a circulating refrigerating medium, means superimposing the tank for supplying such medium to the coil, said coil being arranged to provide a clear vertical 'spacebetween it and a side wall of said tank, a refrigerating element in the provision chamber comprising a conduit for the circulation of therefrigerating liquid th-erethrough, a feed terminal and a return terminalextending along the bottom of the tank and commumnicating from end to end thereof with the interior of the tank, the feed terminal being disposed beneath the coil and the return terminal disposed in said vertical space adjacent said side wall of the tank, the conduit of the refrigerating element communicating with the feed terminal andwith the return terminal.

2. In a refrigerator, a cabinet providing a chamber for provislons and having doors at i the front thereof lending access to the chamber, a tank containing a'refrigerating liquid superimposing the cabinet, a coil in the tank for a circulating refrigerating medium, means superimposing the tank for supplying such medium to the coil, said coil being arranged to provide clear vertical spaces between it and the side walls of the'tank and to provide a clear vertical central space within said tank, a pair of spaced refrigerating elements disposed centrally of the provision chamber in the upper portion thereof, each comprising a conduit for the circulation of the refrigerating liquid therethrough, a feed terminal and return terminals extending along the bottom of the tank and communicating from end to end thereof with the interior of the tank, the feed terminal being disposed in said centralspace and the return terminals disposed in said outer spaces, respectively, the conduit of each refrigerating element communicating with the feed termi- 7 nal and with one of said return terminals.

In testimony whereof I have affixed my signature to this specification. 7

CHARLES A. MOORE. 

